Swamp Cooler

thingiverse

Print and assemble these parts in conjunction with a 120mm PC fan to create a personal air conditioning unit, known as a swamp cooler. The cooler performs well in dry environments where the ambient humidity is low enough to promote quick evaporation of water from a permeable material placed in the hopper of the swamp_cooler_body (https://en.wikipedia.org/wiki/Evaporative_cooler). Cut and insert segments of cardboard, measuring 60 x 120mm, into the hopper. Position the cardboard to allow air to pass through the fluting (https://en.wikipedia.org/wiki/Corrugated_fiberboard), carrying cool, humid, air out of the unit. In my testing, an inlet bevel was necessary to decrease turbulence on the inlet side of the fan and reduce noise levels. I recommend printing both pieces and joining them to the fan with M4 20mm screws and bolts. The images I uploaded will assist in visualizing assembly and selecting a suitable fan for the project. I used an old fan from a dead computer, similar to this model: https://www.digikey.com/product-detail/en/sunon-fans/KDE1212PMV1.13.MS.A.GN/259-1438-ND/1249311.